Telephone-receiver mounting



March 4, 1930.

K. KODAMA 1,749,289

TELEPHONE RECEIVER MOUNTING Filed Aug. 13, 1928 4 Sheets-Sheet l Inventor R5100 malewa/ Attornqy March 4, 1930. KODAMA 1,749,289

TELEPHONE RECEIVER MOUNTING Filed Aug. 13, 1928 4 Sheets-Sheet 2 illll J Hum.

Inventor @3140 Marni/a,

March 4, 1930.

K. KKKK MA 49,289 NE REGE' N March 4, 193D. KODAMA 1,749,289

TELEPHONE RECEIVER MOUNTING Filed Aug. 13. 1928 4 Sheets-Sheet 4 Inventor Attomqy Patented Mar. 4,

xAzUo xonAMA, or-rn'rnnsnune, TERRITORY or ALASKA.

' TELEPHONE-RECEIVER MOUNTING Applicationfiled' August 13, 1928. Serial No. 299,306.

. present invention relates to new and useful improvements in .the telephony art, and the same refers more partic larly to a 1 novel mounting for telephonic receivers.

. if; Thefp'r'e'sent invention aimsto rovide'a receiver-moun which w not necessitate -thesupport of thejsame, in the hand of the V user, butpermits'theuser to occupy his hands :with other matters after the receiver has been once set in an operativeposition. o

, ifAn important object of theinvention,.re-

' sides inthe means employed whereby the telephonic circuit willbe closed when the novel receiver is moved outwardly-to anoperative position."

Still another object resides in the novel circuit actuating 'meansflemployed in con; junction with the receiver. v v I f 1 After considering the following speclfication and claims, other important objects and advantages of the invention, will becomeapparent. V

' Inthedrawings:' f v l Figure 1 's a front elevation of thefinven Fig-.12 is a side elevation of 'the telephone setshowing the novel receiver ininoperative Pos tio "Fig.3 'is a tion."-

Fig. 4 is a longitudinal sectional view thru the receiver structure disclosing the manner. wherebythe samefis connected-to the telephonesetcasing.

disclosing the switch means employed for controlling the telephonic circuit; Fig. 9 is a fragmentary horizontal sectional 'viewithrough the casing, showing the contact fingers-in top plan.*

I side elevation of'the' telephone setfwiththe novel receiver in operat ve POSl exertion of'pressure againstthe diaphragm being provided with a View through the casing of the telephone set,

Fig. 10 is a perspective View of the pivotal switch arm, and 1 v Fig. 11 is a fragmentary interior side elevation of the casing wall showing the arm movable bythe receiver in position with the pivotal switch arm. 1 I

Referring to the drawings, wherein like numerals designate like parts, a box-like casing 1, represents a structure wherein the structural details of a telephone transmitter are housed. The'usual mouthpiece 2 is-located at the front side of the casing, these features of originality, disclosed to illustrate the relation of the novel receiver therewith. I

At preferably the right side of the casing 1 and adjacent the bottom thereof,the Wall is formed with an opening 3. A shell 4 preferably of cylindrical formation is provided with a circumferentially extending flange 5 atone end thereof, this flange being disposed outwardly and formed with openings through which suitable screws may be inserted for securing the shell to the side wall, and over the opening 3.

The shell is formed with an inwardly disposed flange 6 at its opposite end, and this flangeis provided with a protuberance 7 on the outer side thereof. I

A cylindricalhousing 7 is open at one end and is adapted to contain a magnetic vibratory unit f conventional design, and preferably of the diaphragm type. A plate 9 has its periphery threaded for engagement within the end of the housing 7, and for the of the vibratory unit.

The closed ends of the housing is provided with an extension 10, of polygonal shape,and

shoulder 11, at its inner end, for bearing relation with the edge portion of the'opening 3 in the casing. The conductorsl2j extending from the magnetic vibratory unit are-trained through the hollow extension 10 in a manner as shown in Fig. 4. v; The receiver consists of an elongated substantially U-shaped megaphonic arm 13, connected at one end to the plate 9, by a suitable means. "The opposite end of thearm is provided with an enlarged head 14-, Whereas the V venturi is flared as at 15. The end of the arm 13 connected to the plate 9; is provided with a laterally disposed lug 16, adapted to' abut the protuberance 1 when the arm 13 is moved outwardly of the casing 1, for exam ple, in the position shown in Fig. 3.

An elongated bar 17 is provided with a circular formation 18 at one end having a poly onal shaped bore 19 therethrough. An extension 10 of the housing 7 is adapted to pro ject through the circular head.18 anda set screw may be employed as designatedby. 20

for securing the same in position.

Figs. Sand 9 show the switchymeans; for

actuating the telephonic circuit. Suitable insulation 21 is secured to the rear wall of the casing and atthe interior thereof. Apair of spring fingers 2222, are secured at one of their ends to the insulation21, and are separated from each other, by insulating blocks 23 23. Between the blocks 23-23 an elongated spring strip 24, has'one of its ends secured, while its opposite end projects beyond the free terminals of the spring fingers 22 22. i r

An L-shaped lever 25 is flattened for a major portion of its length, and clearly disclosed in Fig.10. A suitable bracket 26 is mounted onthe fioor of the casing 1 for pivotally supporting the L-shaped lever 5 A portion of the lever 25 is knurled at 27', and adapted to projectthrough a slot 20 in the side of the casing.

When the arm 13 is in the position shown in Fig. 2, the bar-17 is bearing downwardly on the L-shaped lever 25, resulting inthe engagement-of the upstanding leg portion of, without departing from the spirit of the thereof, against the spring strip 24, for maintaining the telephonic circuit.

When the arm 13 is in the position shown in Fig. 3, the bar 17 is lifted from engagement upon the lever 25, which results in the movement of the spring strip 24, to a position bear ing against the opposite contact 22, which results in the telephonic circuit. V

, The present invention will obviously be appreciated to ahigh degree, in railroad sta tions, and similar places, where the patrons are in arush and prefer to retain'parcels and baggage in their hands, rather than to place the same upon the floor, the present device serving this need completely in that all that is necessary, is to move the megaphonic arm 13- outwardly of the casing 1, which results in the closing of the telephonic circuit and the proper disposing of the arm in respect to the transmitter inouthpiece2.

It is also to be understood that certain changes in the specific shape, size, and materials, consistent with the present invention, may be resorted to in the manufacture thereinvention or the scope of the appended claims. Having thus described my invention, what I claim as new is I 1. Ina receiver for wall type telephones the arm and the-shell, whereby the arm may between the arm and the switch whereby'the be supported in aidefiniteposition outwardly 'of the-casing, a switch'structure for opening and closing the telephonic circuit, and means 2. In a telephone set comprising a casing, i.

an ear piece movably secured to said casing,

a switch for closing theusual telephonic cir-' cuit, andmeans operable by said ear piece for actuating said switch when the ear piece 1 is moved to a predetermined position, said switch structure consisting of afbase" plate of dielectric material, a'pair of stationary arms projecting from said baseplate, and a spring arm projecting from the plate and 'beyondthe free ends thereof.-

3. In a telephone set comprising a casing,

an ear piece 'movably secured to said casing, V

a switch for closing the usual telephonic circuit, and meansoperable bysaid ear piece for actuating said'switch when theear piece moved to a predetermined position, said switch structure consistingv of a base plate of dielectric material, a pair'of stationary arms projecting from said base plate, a'nda spring arm projecting from the'plate and beyond the free endsthere'of, a rocker armengage-c able at oneend' bytheiear piece and being adapted'at its oppositeend to transmit mo-f spring arm for actuating the said:

tion to the switch. I 1 3 i g 4; Ina telephone set comprising a casing, an earpiece movably. secured to said casing,

a switch for closingthefusual telephonic cir cuit, and means operable by said'ear piece for actuating'said switch when the ear piece is moved to a predetermined position, gsaidf switch structure consisting of a'base plate of dielectric material, a pair of stationary arms projecting from said base plate, and a spring arm 'projecting'from the plate and beyond the free ends thereof; said means consisting of arocker arm'and-a lever" projecting 'laterally from thefinner end ofthe ear piece, said lever bei-ngadapted-t'o engage one s end of the rocker arm, while theopposite'end g thereof is adapted to engage the spring arm to actuatethe said switch whenthe earpiece is moved to a predetermined position.

said casing being provided with an opening,

a rocker arm mounted withintheopening',

one end of the arm beingadapted for hand engagement, a switch for interposition in the by said ear piece for engaging said arm so A 5. In a telephone .set comprising a casing, I 7 an earp ecemovably secured tousaidcasing .2 s

' 5 ing, said casing being provided with an openas to cause the same to movev against and actuate the said switch. r 6. Ina telephone set comprising a casing, 7 an ear piece movably secured to said casing, an L'-shaped rocker arm mounted within the opening, a switch for making or breaking the usual telephonic circuit,,a' lever on the ear piece for engaging said rocker arm, and 10 moving the same against the switch for actuating the same.

In testimony whereof I affix my signature.

' KAZUO KODAMA. 

